25432015 has 8 divisors (see below), whose sum is σ = 34878240. Its totient is φ = 17439072.

The previous prime is 25432003. The next prime is 25432019. The reversal of 25432015 is 51023452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25432015 - 2⁹ = 25431503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25432019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363280 + ... + 363349.

It is an arithmetic number, because the mean of its divisors is an integer number (4359780).

Almost surely, 2^25432015 is an apocalyptic number.

25432015 is a deficient number, since it is larger than the sum of its proper divisors (9446225).

25432015 is an equidigital number, since it uses as much as digits as its factorization.

25432015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726641.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 25432015 is about 5043.0164584304. The cubic root of 25432015 is about 294.0764567376.

Adding to 25432015 its reverse (51023452), we get a palindrome (76455467).

The spelling of 25432015 in words is "twenty-five million, four hundred thirty-two thousand, fifteen".